Crews are investigating reports of a chlorine smell in Bridge City. Hazardous materials crews are at the Union Pacific Rail Yard in in the 5200 block of River Road, said Joe Greco, director of the East Bank Consolidated Fire District.

The Union Pacific rail yard on River Road near Bridge City.Michelle Hunter/NOLA.com

The Bridge City Volunteer Fire Department is also on scene. Greco said the crews are investigating to determine whether the smell is coming from a leaking rail car. A representative with Union Pacific declined to comment about the reports Thursday afternoon.

There were reports that the smell was drifting over to nearby homes in Avondale. But no evacuations have been ordered. Stay with NOLA.com as more information becomes available.